Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    08-05-2024 22:54

General

  • Target

    88f173d3106eec489eeb0cfb9d93ab90_NEIKI.exe

  • Size

    276KB

  • MD5

    88f173d3106eec489eeb0cfb9d93ab90

  • SHA1

    8ea7e398491bdd803956ba29660a6d5fe7c69692

  • SHA256

    81a69ae81239de2b87658d6056fe0b9dfb1663c5dacc279646a22b47af06c478

  • SHA512

    510832b3a68c9e9839763736e49eaa9cfd5d4dc00e8b17edec18e56d0252e8077485d1b56eabbc2b658badbb579d610ef1c0e32505389ec429f314d4fd43ce3f

  • SSDEEP

    3072:TAfmxj3LlZF9H+52cTKqRMIsWkll98jTfjBbBBhRXQrt7ovbeBT:/lp9m2cTUqASTfj9B5k9M

Malware Config

Extracted

Family

vidar

Version

6.5

Botnet

d1fd1813828c51f2b0fb9c5d1459b66c

C2

https://t.me/starcofeeth

https://steamcommunity.com/profiles/76561199571056594

Attributes
  • profile_id_v2

    d1fd1813828c51f2b0fb9c5d1459b66c

  • user_agent

    Mozilla/5.0 (X11; CrOS x86_64 15329.59.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36

Signatures

  • Detect Vidar Stealer 3 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Deletes itself 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\88f173d3106eec489eeb0cfb9d93ab90_NEIKI.exe
    "C:\Users\Admin\AppData\Local\Temp\88f173d3106eec489eeb0cfb9d93ab90_NEIKI.exe"
    1⤵
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2920
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\ProgramData\FHJEGIIEGI.exe"
      2⤵
        PID:1996
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\88f173d3106eec489eeb0cfb9d93ab90_NEIKI.exe" & del "C:\ProgramData\*.dll"" & exit
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:1404
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 5
          3⤵
          • Delays execution with timeout.exe
          PID:2268

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

      Filesize

      68KB

      MD5

      29f65ba8e88c063813cc50a4ea544e93

      SHA1

      05a7040d5c127e68c25d81cc51271ffb8bef3568

      SHA256

      1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

      SHA512

      e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

    • C:\Users\Admin\AppData\Local\Temp\Tar1F1C.tmp

      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • memory/1996-75-0x00000000028D0000-0x00000000028D1000-memory.dmp

      Filesize

      4KB

    • memory/2920-1-0x0000000000800000-0x0000000000900000-memory.dmp

      Filesize

      1024KB

    • memory/2920-3-0x0000000000400000-0x0000000000639000-memory.dmp

      Filesize

      2.2MB

    • memory/2920-2-0x0000000000220000-0x0000000000246000-memory.dmp

      Filesize

      152KB

    • memory/2920-57-0x0000000000400000-0x0000000000639000-memory.dmp

      Filesize

      2.2MB

    • memory/2920-58-0x0000000000800000-0x0000000000900000-memory.dmp

      Filesize

      1024KB